Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2⋯O1i	0.82	1.91	2.704 (9)	163
C4—H4⋯N2ii	0.93	2.73	3.570 (10)	151
C8—H8⋯O2iii	0.93	2.53	3.376 (11)	152

Symmetry codes: (i) ; (ii) ; (iii) .